Humidification-dehumidification solar desalination system using porous activated carbon tubes as a humidifier

Emad M.S. El-Said, Mohamed A. Dahab, Mohamed A. Omara and Gamal B. Abdelaziz

Renewable Energy, 2022, vol. 187, issue C, 657-670

Abstract: The integration of solar water desalination utilizing humidification dehumidification (HDH) techniques with a cooling system (CS) and hot air flow rate was investigated experimentally during Sept and Oct. 2020 under Egypt's Suez governorate's climate located at 29.9669°N, 32.5499°E. The system performance at various air flow rates, water basin height of the daily production was tested. A porous activated carbon tube (PACT) was utilized as a humidifier where the relative humidity reaches 100%, and the cooling system was used as a dehumidifier. The results revealed that increasing water height (Hw) enhances freshwater productivity. The highest distillate yield occurred at water height 3 cm, increasing 13.75% and 5.5% compared with water height 1 cm and 2 cm, respectively. The optimal hot air flowrate is 0.01156 kg/s with an increase of 100%, 38.46%, 15.9%, and 34.5% compared with 0.0057, 0.0086, 0.0144, and 0.0173 kg/s, respectively. The maximum freshwater production is 6.12 kg/day. The energy and exergy efficiencies and gain output ratio (GOR) are 26.73% and 1.57%, and 1.24, respectively. Economic analysis showed that the cost of 1 L of fresh water is 0.01386 USD.

Keywords: Solar energy; Water desalination; Porous activated carbon tube; Humidification-dehumidification (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:187:y:2022:i:c:p:657-670

DOI: 10.1016/j.renene.2022.01.023

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